Delavan, WI: PFAS Found in Water - Home Safety 50/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Delavan: D.
Several federal signals point to home-safety risks in this ZIP.
Public water compliance in Delavan falls below the WI baseline - elevated violation rates are on record.
How Delavan Compares
Data: EPA SDWIS
Delavan Water: The Quick Version
- Your city's water systems recorded 69 violations in the past 5 years.
- Average lead level: 0.016 mg/L - exceeds the EPA action level of 0.015 mg/L.
- Homes built before 1986: 63% - older plumbing may contain lead solder.
- Estimated remediation: $2,400 per household.
- CDC health risk index: 12.73 - above typical levels.
Water Systems Serving Delavan
Throughout Delavan, WI, water comes from one of 3 primary utilities out of 5 total systems - independent providers with different rate structures, infrastructure, and compliance records that vary across the service territory.
- D
- D
- D
Overview
We track home safety data for 1 ZIP code in Delavan, Wisconsin, covering 5 community water systems serving approximately 16,056 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 2 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Delavan: D (50/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Delavan water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0160 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 22 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 8 | 1 |
| Consumer Confidence Report Rule | Reporting | 6 | 1 |
| Lead | Inorganic | 4 | 1 |
| PFOA | PFAS | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 53115 | D | 69 | 2 | Delavan Waterworks |
All ZIP Codes in Delavan
- 53115 [D] - 69 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Delavan
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Delavan
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Delavan's Housing Stock?
With 63% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
The median home in Delavan was built in 1976 - a figure that places most of the city's residential stock in the era when lead solder was still standard in copper plumbing. Homes built before 1986 may have lead-soldered joints; those built before 1970 face the additional possibility of lead pipes in the service line itself.
Over half of homes in Delavan were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Delavan: Remediation Cost in Perspective
Looking at how documented remediation costs fit within Delavan property values, the equity share lands in the moderate tier - a finding that positions the household financial perspective between routine maintenance and a significant budget commitment, where most homeowners can successfully address documented issues by treating the expense as a planned financial priority rather than an unexpected one.
Remediation costs are moderate relative to home values in Delavan. The estimated $1,600–$3,300 range is manageable for most homeowners but still worth budgeting for. Home values are 2% below the Wisconsin average.
Protecting Children from Lead in Delavan
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Reading the local data together produces a single household-level picture for Delavan. The 63% pre-rule housing share - that is, the share of buildings constructed before federal rules removed lead solder from new plumbing - combines with citywide utility readings beyond the regulatory action level. The two indicators run in parallel here. An in-home draw produces the household-specific information that aggregate data cannot, and a certified filter via retailer networks is the standard intervention where confirmed results warrant it.
<strong>1 ZIP code</strong> (100% of the city) exceeds the EPA lead action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Delavan
Historical NFIP data for Delavan contains 2 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $3,849. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,400</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
What You Can Do in Delavan
- Test your water at home. City-level data shows averages - your tap may differ. Lead testing is especially recommended given the area's lead levels.
- Install a certified water filter. Filters rated for Stage 1 DBP Rule can reduce the most common contaminant found in Delavan's water.
- Check your home's plumbing. With 63% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Delavan, WI